Jobs By Abekus

Electromagnetic-theory Questions Set 11:

Quiz Mode

Does radiation intensity depend on the distance from the source?

True

False

None of the above

Cannot be determined

Solution:

A lossless antenna is fed with 1.6 mW of power and has a directive gain of 5 dB. Find the total power radiated by the antenna.

8 mW

3.125 mW

0.32 mW

1.6 mW

Solution:

Given the S matrix, determine if the network is symmetric.
S = [ 0.262 0° 0.38 -45°
0.38 45° 0.262 0°]

Symmetric

Not Symmetric

Depends on other conditions

Cannot be determined

Solution:

The refractive indices of medium 1 and 2 are given as 3.2 and 2.6 respectively.

Find the ratio of the sine of the incident angle to the sine of the reflected angle.

1.2308

0.8125

0.3846

0.3125

Solution:

For a distortion-less transmission line, the resistance is 10 Ω/m, the inductance is 0.9 μH/m, and the capacitance is 21 pF/m. Calculate the value of G in milli-mho/m.

758.23

456.12

233.33

63.45

Solution:

Calculate the work done in the power transmission when the electric field, E = 52 units and the magnetic field intensity, H = 72 units. The velocity of propagation is 18 m/s.

25 units

448.6 units

234 units

208 units

Solution:

The total magnetic flux through the xy plane for a circular loop of radius R carrying current I lying in the xy plane with its center at the origin is:

Directly proportional to I

Directly proportional to R

Inversely proportional to R

Zero

Solution:

The charge q = 10mC is at rest initially , when it is kept in time varying Magnetic field B = 5t²a_x + 6t³a_y then it starts moving with velocity V = 2ta_x- 3t²a_y . what will be the acceleration a of charge q at t = 2sec , if the mass of charge q is 2Kg.

a=2.27 a_z

a = 2.16 a_y

a = 1.24 a_x

a = 2.16 a_z

Solution:

A charged particle moves through a magnetic field perpendicular to its direction of motion. What happens to the particle's momentum and kinetic energy?

Kinetic energy changes but the momentum is constant

The momentum changes but the kinetic energy is constant

Both momentum and kinetic energy of the particle are not constant

Both momentum and kinetic energy of the particle are constant

Solution:

The condition under which a microwave oven heats up a food item containing water molecules most efficiently is:

The frequency of the microwaves must match the resonant frequency of the water molecules

The frequency of the microwaves has no relation with natural frequency of water molecules

Microwaves are heat waves so, always produce heating

Infrared waves produce heating in a microwave oven

Electromagnetic-theory Questions Set 11:

Does radiation intensity depend on the distance from the source?

Solution:

A lossless antenna is fed with 1.6 mW of power and has a directive gain of 5 dB. Find the total power radiated by the antenna.

Solution:

Given the S matrix, determine if the network is symmetric.
S = [ 0.262 0° 0.38 -45°
0.38 45° 0.262 0°]

Solution:

The refractive indices of medium 1 and 2 are given as 3.2 and 2.6 respectively.

Find the ratio of the sine of the incident angle to the sine of the reflected angle.

Solution:

For a distortion-less transmission line, the resistance is 10 Ω/m, the inductance is 0.9 μH/m, and the capacitance is 21 pF/m. Calculate the value of G in milli-mho/m.

Solution:

Calculate the work done in the power transmission when the electric field, E = 52 units and the magnetic field intensity, H = 72 units. The velocity of propagation is 18 m/s.

Solution:

The total magnetic flux through the xy plane for a circular loop of radius R carrying current I lying in the xy plane with its center at the origin is:

Solution:

The charge q = 10mC is at rest initially , when it is kept in time varying Magnetic field B = 5t²a_x + 6t³a_y then it starts moving with velocity V = 2ta_x- 3t²a_y . what will be the acceleration a of charge q at t = 2sec , if the mass of charge q is 2Kg.

Solution:

A charged particle moves through a magnetic field perpendicular to its direction of motion. What happens to the particle's momentum and kinetic energy?

Solution:

The condition under which a microwave oven heats up a food item containing water molecules most efficiently is:

Solution:

Related Question Sets:

Related Topics:

Electromagnetic-theory Questions Set 11:

Does radiation intensity depend on the distance from the source?

Solution:

A lossless antenna is fed with 1.6 mW of power and has a directive gain of 5 dB. Find the total power radiated by the antenna.

Solution:

Given the S matrix, determine if the network is symmetric.S = [ 0.262 0° 0.38 -45° 0.38 45° 0.262 0°]

Solution:

The refractive indices of medium 1 and 2 are given as 3.2 and 2.6 respectively. Find the ratio of the sine of the incident angle to the sine of the reflected angle.

Solution:

For a distortion-less transmission line, the resistance is 10 Ω/m, the inductance is 0.9 μH/m, and the capacitance is 21 pF/m. Calculate the value of G in milli-mho/m.

Solution:

Calculate the work done in the power transmission when the electric field, E = 52 units and the magnetic field intensity, H = 72 units. The velocity of propagation is 18 m/s.

Solution:

The total magnetic flux through the xy plane for a circular loop of radius R carrying current I lying in the xy plane with its center at the origin is:

Solution:

The charge q = 10mC is at rest initially , when it is kept in time varying Magnetic field B = 5t2ax + 6t3ay then it starts moving with velocity V = 2tax - 3t2ay . what will be the acceleration a of charge q at t = 2sec , if the mass of charge q is 2Kg.

Solution:

A charged particle moves through a magnetic field perpendicular to its direction of motion. What happens to the particle's momentum and kinetic energy?

Solution:

The condition under which a microwave oven heats up a food item containing water molecules most efficiently is:

Solution:

Related Question Sets:

Related Topics:

Given the S matrix, determine if the network is symmetric.
S = [ 0.262 0° 0.38 -45°
0.38 45° 0.262 0°]

The refractive indices of medium 1 and 2 are given as 3.2 and 2.6 respectively.

Find the ratio of the sine of the incident angle to the sine of the reflected angle.

The charge q = 10mC is at rest initially , when it is kept in time varying Magnetic field B = 5t²a_x + 6t³a_y then it starts moving with velocity V = 2ta_x- 3t²a_y . what will be the acceleration a of charge q at t = 2sec , if the mass of charge q is 2Kg.